From: "Neila Nessa" <neilanessa@msn.com>
Subject: Re: Using macros for variable lists
Date: May 30, 2003 8:11 AM

Hi,
  This doesn't really explain the problem, but poses a possible
general solution.  Use !EVAL within the DO REPEAT.  To do this wrap
the code fragment
as another macro.  Then stuff works.  I use Macros in much of my work.
Never ran into this exact problem before.
HTH, Neila

----------
sample of what I am talking about.
DEFINE mylist1 () var1 var3 var5 var7
!ENDDEFINE. 
DEFINE mylist2 () var2 var4 var6 var8  
!ENDDEFINE. 



DEFINE WRAPIT ()
DO REPEAT V = !EVAL(MYLIST1)
 /W = !EVAL(MYLIST2).
compute X = V*W .
END REPEAT PRINT .
!ENDDEFINE .
SET PRINTBACK ON MPRINT ON.
data list free /var1 to var8 .
begin data
3  3 7 6 1 2 3 7 8 6 1 2 7 8  3 6 1 7 8 3  2
end data .

WRAPIT .



 155 M>  
WRAPIT .
 156 M>  
 157 M>  .
 158 M>  DO REPEAT V = VAR1 VAR3 VAR5 VAR7 /W = VAR2 VAR4 VAR6 VAR8.
 159 M>  COMPUTE X = V*W.
 160 M>  END REPEAT PRINT
 161 M>    .
 
 161 +COMPUTE        X = VAR1*VAR2
 162 +COMPUTE        X = VAR3*VAR4
 163 +COMPUTE        X = VAR5*VAR6
 164 +COMPUTE        X = VAR7*VAR8

Bruce Weaver <weaverb@mcmail.cis.mcmaster.ca> wrote in message news:<Pine.SOL.4.33.0305291733070.3536-100000@mcmail.cis.mcmaster.ca>...
> Hello group,
> 
> One of my colleagues ran into some unexpected behaviour by SPSS when using
> macros for variable lists in DO REPEAT statements etc.  FWIW, a summary of
> his observations is available here:
> 
> http://www.angelfire.com/wv/bwhomedir/spss/macros_for_var_lists.txt
> 
> Cheers,

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